error "GT_VBAP05" is a table without a header line and does not have a component called "VGBEL".

SELECT vbeln , vgbel FROM vbap INTO TABLE @data(gt_vbap05)
FOR ALL ENTRIES IN @gt_vbrp WHERE vbeln = @gt_vbrp-aubel.

getting error "GT_VBAP05" is a table without a header line and therefore does not have a component called "VGBEL".

hoe to resolve it ?